From: Association between increased levels of amyloid-β oligomers in plasma and episodic memory loss in Alzheimer’s disease
AD (n = 30)
Control (n = 28)
r
p
Episodic memory
COMT-IR
− 0.60
0.002
− 0.13
0.56
COMT-DR5
− 0.54
0.006
− 0.18
0.41
COMT-DR30
− 0.71
< 0.001
− 0.23
0.27